TQ powdered metal gusher bearing design enables grease to flow through the stud for reduced friction and enhanced strength and stability, Premium cover plate design allows for tighter tolerances vs traditional cover plate designs, providing a more durable and extended life for the ball joint, TQ engineered steel composition results in a stronger component. Our full-ball metal stud provides smooth, consistent, rotational movement resulting in more responsive steering, TQ greaseable socket design allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear, Forged, CNC-machined shell leads to high-quality, precision-made performance and additional strength, Manufactured with CNC tooling, automated grinding and assembly lines for increased consistency, Part Reference Numbers : B90459PR B90459XL BJ69335PR BJ69335XL BJ69335 B90459 GK90459 MK90459 K90459 104334 2601601 TK90459, Kit Includes: 2x Front Lower Suspension Ball Joint (Both Side), Kit Variations: K72-100980